石油化工2025，Vol.54Issue(3)：348-354,7.DOI:10.3969/j.issn.1000-8144.2025.03.008
甲醇与正己烷耦合芳构化流程模拟及分析
Simulation and analysis of coupling aromatization process of methanol and n-hexane
摘要
Abstract
Coupling aromatization of methanol and n-hexane was studied through single-factor analysis with the coupling aromatization process as the research object and the conversion of methanol and n-hexane and the product distribution as the indicators.The sensitivity analysis function integrated within Aspen Plus was utilized to conduct simulation optimization for both the extractive distillation column and the benzene,toluene,and xylene distillation column.According to simulation results,the optimal reaction conditions are determined to be a feed ratio of m(methanol)∶m(n-hexane)3∶1,a reaction temperature of 420℃,a reaction pressure of 0.5 MPa,and a WHSV of 2.0 h-1.As for the extractive distillation column,the optimal conditions include 34 trays,a reflux ratio of 0.6,a feed stage at the 17th tray,and an NFM introduction position at the 4th tray.As for the benzene,toluene,and xylene distillation column,the optimal tray numbers are 42,41,and 24,respectively,with corresponding reflux ratios of 21.0,6.5,and 3.0,and feed stages at the 17th,24th,and 14th trays,respectively.After optimization,the purity of the benzene,toluene,and xylene products reaches 99.14%,99.92%,and 99.64%(w)respectively,all meeting the requirements for qualified products.关键词
甲醇/正己烷/耦合芳构化/Aspen Plus/灵敏度分析Key words
methanol/n-hexane/coupling aromatization/Aspen Plus/sensitivity analysis分类
化学化工引用本文复制引用
杨丽娜,王兴宇,魏永峰,李剑..甲醇与正己烷耦合芳构化流程模拟及分析[J].石油化工,2025,54(3):348-354,7.基金项目
辽宁省高等学校杰出青年学者成长计划(LJQ2015062) （LJQ2015062）
辽宁省科学技术厅项目(20170540585) （20170540585）
辽宁省教育厅项目(L2015296,L2016018). （L2015296,L2016018）
